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godot/modules/chibi/cp_player_data_effects.cpp

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/*************************************************************************/
/* cp_player_data_effects.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "cp_player_data.h"
/**********************
complex effects
***********************/
#define RANDOM_MAX 2147483647
static inline int32_t cp_random_generate(int32_t *seed) {
int32_t k;
int32_t s = (int32_t)(*seed);
if (s == 0)
s = 0x12345987;
k = s / 127773;
s = 16807 * (s - k * 127773) - 2836 * k;
if (s < 0)
s += 2147483647;
(*seed) = (int32_t)s;
return (int32_t)(s & RANDOM_MAX);
}
void CPPlayer::do_vibrato(int p_track, bool fine) {
uint8_t q;
uint16_t temp = 0;
if ((control.ticks_counter == 0) && control.channel[p_track].row_has_note) control.channel[p_track].vibrato_position = 0;
q = (control.channel[p_track].vibrato_position >> 2) & 0x1f;
switch (control.channel[p_track].vibrato_type) {
case 0: /* sine */
temp = vibrato_table[q];
break;
case 1: /* square wave */
temp = 255;
break;
case 2: /* ramp down */
q <<= 3;
if (control.channel[p_track].vibrato_position < 0) q = 255 - q;
temp = q;
break;
case 3: /* random */
temp = cp_random_generate(&control.random_seed) % 256; //getrandom(256);
break;
}
temp *= control.channel[p_track].vibrato_depth;
if (song->has_old_effects()) {
temp >>= 7;
} else {
temp >>= 8;
}
if (!fine) temp <<= 2;
if (control.channel[p_track].vibrato_position >= 0) {
control.channel[p_track].period = control.channel[p_track].aux_period + temp;
} else {
control.channel[p_track].period = control.channel[p_track].aux_period - temp;
}
if (!song->has_old_effects() || control.ticks_counter) control.channel[p_track].vibrato_position += control.channel[p_track].vibrato_speed;
}
void CPPlayer::do_pitch_slide_down(int p_track, uint8_t inf) {
uint8_t hi, lo;
if (inf)
control.channel[p_track].pitch_slide_info = inf;
else
inf = control.channel[p_track].pitch_slide_info;
hi = inf >> 4;
lo = inf & 0xf;
if (hi == 0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_period += (uint16_t)lo << 2;
} else if (hi == 0xe) {
if (!control.ticks_counter) control.channel[p_track].aux_period += lo;
} else {
if (control.ticks_counter) control.channel[p_track].aux_period += (uint16_t)inf << 2;
}
}
void CPPlayer::do_pitch_slide_up(int p_track, uint8_t inf) {
uint8_t hi, lo;
if (inf)
control.channel[p_track].pitch_slide_info = inf;
else
inf = control.channel[p_track].pitch_slide_info;
hi = inf >> 4;
lo = inf & 0xf;
if (hi == 0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_period -= (uint16_t)lo << 2;
} else if (hi == 0xe) {
if (!control.ticks_counter) control.channel[p_track].aux_period -= lo;
} else {
if (control.ticks_counter) control.channel[p_track].aux_period -= (uint16_t)inf << 2;
}
}
void CPPlayer::do_pitch_slide_to_note(int p_track) {
if (control.ticks_counter) {
int dist;
/* We have to slide a->period towards a->wantedperiod, compute the
difference between those two values */
dist = control.channel[p_track].period - control.channel[p_track].slide_to_period;
/* if they are equal or if portamentospeed is too big... */
if ((!dist) || ((control.channel[p_track].portamento_speed << 2) > cp_intabs(dist))) {
/* ... make tmpperiod equal tperiod */
control.channel[p_track].aux_period = control.channel[p_track].period = control.channel[p_track].slide_to_period;
} else {
if (dist > 0) {
control.channel[p_track].aux_period -= control.channel[p_track].portamento_speed << 2;
control.channel[p_track].period -= control.channel[p_track].portamento_speed << 2; /* dist>0 slide up */
} else {
control.channel[p_track].aux_period += control.channel[p_track].portamento_speed << 2;
control.channel[p_track].period += control.channel[p_track].portamento_speed << 2; /* dist<0 slide down */
}
}
} else {
control.channel[p_track].aux_period = control.channel[p_track].period;
}
}
void CPPlayer::do_tremor(int p_track) {
uint8_t on, off, inf;
inf = control.channel[p_track].current_parameter;
if (inf) {
control.channel[p_track].tremor_info = inf;
} else {
inf = control.channel[p_track].tremor_info;
if (!inf) return;
}
//if (!control.ticks_counter) return;
on = (inf >> 4);
off = (inf & 0xf);
control.channel[p_track].tremor_position %= (on + off);
control.channel[p_track].volume = (control.channel[p_track].tremor_position < on) ? control.channel[p_track].aux_volume : 0;
control.channel[p_track].tremor_position++;
}
void CPPlayer::do_pan_slide(int p_track) {
uint8_t lo, hi, inf;
int16_t pan;
inf = control.channel[p_track].current_parameter;
if (inf)
control.channel[p_track].channel_pan_slide_info = inf;
else
inf = control.channel[p_track].channel_pan_slide_info;
lo = inf & 0xf;
hi = inf >> 4;
pan = (control.channel[p_track].panning == PAN_SURROUND) ? PAN_CENTER : control.channel[p_track].panning;
if (!hi)
pan += lo << 2;
else if (!lo) {
pan -= hi << 2;
} else if (hi == 0xf) {
if (!control.ticks_counter) pan += lo << 2;
} else if (lo == 0xf) {
if (!control.ticks_counter) pan -= hi << 2;
}
//this sets both chan & voice paning
control.channel[p_track].panning = (pan < PAN_LEFT) ? PAN_LEFT : (pan > PAN_RIGHT ? PAN_RIGHT : pan);
control.channel[p_track].channel_panning = control.channel[p_track].panning;
}
void CPPlayer::do_volume_slide(int p_track, int inf) {
uint8_t hi, lo;
lo = inf & 0xf;
hi = inf >> 4;
if (!lo) {
if ((control.ticks_counter)) control.channel[p_track].aux_volume += hi;
} else if (!hi) {
if ((control.ticks_counter)) control.channel[p_track].aux_volume -= lo;
} else if (lo == 0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_volume += (hi ? hi : 0xf);
} else if (hi == 0xf) {
if (!control.ticks_counter) control.channel[p_track].aux_volume -= (lo ? lo : 0xf);
} else
return;
if (control.channel[p_track].aux_volume < 0) {
control.channel[p_track].aux_volume = 0;
} else if (control.channel[p_track].aux_volume > 64) {
control.channel[p_track].aux_volume = 64;
}
}
void CPPlayer::do_channel_volume_slide(int p_track) {
uint8_t lo, hi, inf;
inf = control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].channel_volume_slide_info = inf;
inf = control.channel[p_track].channel_volume_slide_info;
lo = inf & 0xf;
hi = inf >> 4;
if (!hi)
control.channel[p_track].channel_volume -= lo;
else if (!lo) {
control.channel[p_track].channel_volume += hi;
} else if (hi == 0xf) {
if (!control.ticks_counter) control.channel[p_track].channel_volume -= lo;
} else if (lo == 0xf) {
if (!control.ticks_counter) control.channel[p_track].channel_volume += hi;
}
if (control.channel[p_track].channel_volume < 0) control.channel[p_track].channel_volume = 0;
if (control.channel[p_track].channel_volume > 64) control.channel[p_track].channel_volume = 64;
}
void CPPlayer::do_tremolo(int p_track) {
uint8_t q;
int16_t temp = 0;
if ((control.ticks_counter == 0) && control.channel[p_track].row_has_note) control.channel[p_track].tremolo_position = 0;
q = (control.channel[p_track].tremolo_position >> 2) & 0x1f;
switch (control.channel[p_track].tremolo_type) {
case 0: /* sine */
temp = vibrato_table[q];
break;
case 1: /* ramp down */
q <<= 3;
if (control.channel[p_track].tremolo_position < 0) q = 255 - q;
temp = q;
break;
case 2: /* square wave */
temp = 255;
break;
case 3: /* random */
temp = cp_random_generate(&control.random_seed) % 256; //getrandom(256);
break;
}
temp *= control.channel[p_track].tremolo_depth;
temp >>= 7;
if (control.channel[p_track].tremolo_position >= 0) {
control.channel[p_track].volume = control.channel[p_track].aux_volume + temp;
if (control.channel[p_track].volume > 64) control.channel[p_track].volume = 64;
} else {
control.channel[p_track].volume = control.channel[p_track].aux_volume - temp;
if (control.channel[p_track].volume < 0) control.channel[p_track].volume = 0;
}
/*if (control.ticks_counter)*/ control.channel[p_track].tremolo_position += control.channel[p_track].tremolo_speed;
}
void CPPlayer::do_arpegio(int p_track) {
uint8_t note, dat;
//note=control.channel[p_track].note;
note = 0;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].arpegio_info = control.channel[p_track].current_parameter;
}
dat = control.channel[p_track].arpegio_info;
if (dat) {
switch (control.ticks_counter % 3) {
case 1: {
note += (dat >> 4);
} break;
case 2: {
note += (dat & 0xf);
} break;
}
if (song->has_linear_slides()) {
control.channel[p_track].period = control.channel[p_track].aux_period - cp_intabs(get_period((uint16_t)46, 0) - get_period((uint16_t)44, 0)) * note;
} else if (control.channel[p_track].sample_ptr) {
control.channel[p_track].period = get_period((((uint16_t)control.channel[p_track].note) + note) << 1, CPSampleManager::get_singleton()->get_c5_freq((control.channel[p_track].sample_ptr->get_sample_data())));
}
control.channel[p_track].has_own_period = true;
}
}
void CPPlayer::do_retrig(int p_track) {
uint8_t inf;
inf = control.channel[p_track].current_parameter;
if (inf) {
control.channel[p_track].retrig_volslide = inf >> 4;
control.channel[p_track].retrig_speed = inf & 0xf;
}
/* only retrigger if low nibble > 0 */
if (control.channel[p_track].retrig_speed > 0) {
if (!control.channel[p_track].retrig_counter) {
/* when retrig counter reaches 0, reset counter and restart the
sample */
if (control.channel[p_track].kick != KICK_NOTE) control.channel[p_track].kick = KICK_NOTEOFF;
control.channel[p_track].retrig_counter = control.channel[p_track].retrig_speed;
if ((control.ticks_counter) /*||(pf->flags&UF_S3MSLIDES)*/) {
switch (control.channel[p_track].retrig_volslide) {
case 1:
case 2:
case 3:
case 4:
case 5:
control.channel[p_track].aux_volume -= (1 << (control.channel[p_track].retrig_volslide - 1));
break;
case 6:
control.channel[p_track].aux_volume = (2 * control.channel[p_track].aux_volume) / 3;
break;
case 7:
control.channel[p_track].aux_volume >>= 1;
break;
case 9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
control.channel[p_track].aux_volume += (1 << (control.channel[p_track].retrig_volslide - 9));
break;
case 0xe:
control.channel[p_track].aux_volume = (3 * control.channel[p_track].aux_volume) >> 1;
break;
case 0xf:
control.channel[p_track].aux_volume = control.channel[p_track].aux_volume << 1;
break;
}
if (control.channel[p_track].aux_volume < 0)
control.channel[p_track].aux_volume = 0;
else if (control.channel[p_track].aux_volume > 64)
control.channel[p_track].aux_volume = 64;
}
}
control.channel[p_track].retrig_counter--; /* countdown */
}
}
void CPPlayer::do_global_volume_slide(int p_track) {
uint8_t lo, hi, inf;
inf = control.channel[p_track].current_parameter;
if (inf) control.channel[p_track].global_volume_slide_info = inf;
inf = control.channel[p_track].global_volume_slide_info;
lo = inf & 0xf;
hi = inf >> 4;
if (!lo) {
if (control.ticks_counter) control.global_volume += hi;
} else if (!hi) {
if (control.ticks_counter) control.global_volume -= lo;
} else if (lo == 0xf) {
if (!control.ticks_counter) control.global_volume += hi;
} else if (hi == 0xf) {
if (!control.ticks_counter) control.global_volume -= lo;
}
if (control.global_volume < 0) control.global_volume = 0;
if (control.global_volume > 128) control.global_volume = 128;
}
void CPPlayer::do_panbrello(int p_track) {
uint8_t q;
int32_t temp = 0;
q = control.channel[p_track].panbrello_position;
switch (control.channel[p_track].panbrello_type) {
case 0: { /* sine */
temp = panbrello_table[q];
} break;
case 1: { /* square wave */
temp = (q < 0x80) ? 64 : 0;
} break;
case 2: { /* ramp down */
q <<= 3;
temp = q;
} break;
case 3: { /* random */
if (control.channel[p_track].panbrello_position >= control.channel[p_track].panbrello_speed) {
control.channel[p_track].panbrello_position = 0;
temp = cp_random_generate(&control.random_seed) % 256; //getrandom(256);
}
} break;
}
temp = temp * (int)control.channel[p_track].panbrello_depth / 0xF;
temp <<= 1;
if (control.channel[p_track].channel_panning != PAN_SURROUND)
temp += control.channel[p_track].channel_panning;
control.channel[p_track].panning = (temp < PAN_LEFT) ? PAN_LEFT : (temp > PAN_RIGHT ? PAN_RIGHT : temp);
control.channel[p_track].panbrello_position += control.channel[p_track].panbrello_speed;
}
/******************
S effect
*******************/
void CPPlayer::do_effect_S(int p_track) {
uint8_t inf, c, dat;
dat = control.channel[p_track].current_parameter;
inf = dat & 0xf;
c = dat >> 4;
if (!dat) {
c = control.channel[p_track].current_S_effect;
inf = control.channel[p_track].current_S_data;
} else {
control.channel[p_track].current_S_effect = c;
control.channel[p_track].current_S_data = inf;
}
switch (c) {
case 1: { /* S1x set glissando voice */
// this is unsupported in IT!
control.channel[p_track].chorus_send = inf * 0xFF / 0xF;
} break;
case 2: /* S2x set finetune */
//Also not supported!
break;
case 3: /* S3x set vibrato waveform */
if (inf < 4) control.channel[p_track].vibrato_type = inf;
break;
case 4: /* S4x set tremolo waveform */
if (inf < 4) control.channel[p_track].tremolo_type = inf;
break;
case 5: /* S5x panbrello */
if (inf < 4) control.channel[p_track].panbrello_type = inf;
break;
case 6: { /* S6x delay x number of frames (patdly) */
if (control.ticks_counter) break;
if (!control.pattern_delay_2) control.pattern_delay_1 = inf + 1; /* only once, when vbtick=0 */
} break;
case 7: /* S7x instrument / NNA commands */
if (!song->has_instruments())
break;
switch (inf) {
case 0x3: {
control.channel[p_track].NNA_type = CPInstrument::NNA_NOTE_CUT;
} break;
case 0x4: {
control.channel[p_track].NNA_type = CPInstrument::NNA_NOTE_CONTINUE;
} break;
case 0x5: {
control.channel[p_track].NNA_type = CPInstrument::NNA_NOTE_OFF;
} break;
case 0x6: {
control.channel[p_track].NNA_type = CPInstrument::NNA_NOTE_FADE;
} break;
case 0x7: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->volume_envelope_ctrl.active = false;
} break;
case 0x8: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->volume_envelope_ctrl.active = true;
} break;
case 0x9: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->panning_envelope_ctrl.active = false;
} break;
case 0xA: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->panning_envelope_ctrl.active = true;
} break;
case 0xB: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->pitch_envelope_ctrl.active = false;
} break;
case 0xC: {
if (control.channel[p_track].slave_voice)
control.channel[p_track].slave_voice->pitch_envelope_ctrl.active = true;
} break;
}
break;
break;
case 8: { /* S8x set panning position */
// if (pf->panflag) {
if (inf <= 8)
inf <<= 4;
else
inf *= 17;
control.channel[p_track].panning = control.channel[p_track].channel_panning = inf;
// }
} break;
case 9: { /* S9x set surround sound */
//if (pf->panflag)
control.channel[p_track].panning = control.channel[p_track].channel_panning = PAN_SURROUND;
} break;
case 0xA: { /* SAy set high order sample offset yxx00h */
if (control.channel[p_track].current_parameter) control.channel[p_track].hi_offset = (int32_t)inf << 16;
control.channel[p_track].sample_start_index = control.channel[p_track].hi_offset | control.channel[p_track].lo_offset;
} break;
case 0xB: { /* SBx pattern loop */
if (control.ticks_counter) break;
if (inf) { /* set reppos or repcnt ? */
/* set repcnt, so check if repcnt already is set, which means we
are already looping */
if (control.channel[p_track].pattern_loop_count > 0)
control.channel[p_track].pattern_loop_count--; /* already looping, decrease counter */
else {
control.channel[p_track].pattern_loop_count = inf; /* not yet looping, so set repcnt */
}
if (control.channel[p_track].pattern_loop_count > 0) { /* jump to reppos if repcnt>0 */
control.position = control.previous_position; // This will also anulate any Cxx or break..
control.position.current_row = control.channel[p_track].pattern_loop_position;
control.position.forbid_jump = true;
}
} else {
control.channel[p_track].pattern_loop_position = control.position.current_row - 1;
}
} break;
case 0xC: { /* SCx notecut */
if (control.ticks_counter >= inf) {
control.channel[p_track].aux_volume = 0;
control.channel[p_track].note_end_flags |= END_NOTE_OFF;
control.channel[p_track].note_end_flags |= END_NOTE_KILL;
}
} break;
case 0xD: { /* SDx notedelay */
if (!control.ticks_counter) {
control.channel[p_track].note_delay = inf;
} else if (control.channel[p_track].note_delay) {
control.channel[p_track].note_delay--;
}
} break;
case 0xF: { /* SEx patterndelay */
if (control.ticks_counter) break;
if (!control.pattern_delay_2) control.pattern_delay_1 = inf + 1; /* only once, when vbtick=0 */
} break;
}
}
/*********************
volume effects
**********************/
void CPPlayer::run_volume_column_effects(int p_track) {
uint8_t param = control.channel[p_track].current_volume_parameter;
switch ('A' + control.channel[p_track].current_volume_command) {
case 'A': {
if (param > 0)
control.channel[p_track].volcol_volume_slide = param;
else
param = control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track, param * 0x10 + 0xF);
} break;
case 'B': {
if (param > 0)
control.channel[p_track].volcol_volume_slide = param;
else
param = control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track, 0xF0 + param);
} break;
case 'C': {
if (param > 0)
control.channel[p_track].volcol_volume_slide = param;
else
param = control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track, param * 0x10);
} break;
case 'D': {
if (param > 0)
control.channel[p_track].volcol_volume_slide = param;
else
param = control.channel[p_track].volcol_volume_slide;
do_volume_slide(p_track, param);
} break;
case 'E': {
do_pitch_slide_down(p_track, param << 2);
} break;
case 'F': {
do_pitch_slide_up(p_track, param << 2);
} break;
case 'G': {
const uint8_t slide_table[] = { 0, 1, 4, 8, 16, 32, 64, 96, 128, 255 };
if (param) {
control.channel[p_track].portamento_speed = slide_table[param];
}
if (control.channel[p_track].period && (control.channel[p_track].old_note <= 120)) {
if ((!control.ticks_counter) && (control.channel[p_track].new_instrument)) {
//control.channel[p_track].kick=KICK_NOTE;
//control.channel[p_track].sample_start_index=0; // < am i stupid?
} else {
control.channel[p_track].kick = (control.channel[p_track].kick == KICK_NOTE) ? KICK_ENVELOPE : KICK_NOTHING;
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period = true;
}
}
} break;
case 'H': {
if (!control.ticks_counter) {
if (param & 0x0f) control.channel[p_track].vibrato_depth = param;
}
control.channel[p_track].doing_vibrato = true;
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track, false);
control.channel[p_track].has_own_period = true;
}
} break;
}
}
/*********************
table
**********************/
void CPPlayer::run_effects(int p_track) {
switch ('A' + control.channel[p_track].current_command) {
case 'A': {
if ((control.ticks_counter > 0) || (control.pattern_delay_2 > 0)) break;
int new_speed;
new_speed = control.channel[p_track].current_parameter % 128;
if (new_speed > 0) {
control.speed = new_speed;
control.ticks_counter = 0;
}
} break;
case 'B': {
int next_order;
if (control.ticks_counter || control.position.forbid_jump) break;
control.position.current_row = 0;
if (control.play_mode == PLAY_PATTERN) break;
next_order = get_song_next_order_idx(song, (int)control.channel[p_track].current_parameter - 1);
if (next_order != -1) {
// Do we have a "next order?"
control.position.current_pattern = song->get_order(next_order);
control.position.force_next_order = next_order;
} else {
// no, probably the user deleted the orderlist.
control.play_mode = PLAY_NOTHING;
reset();
}
} break;
case 'C': {
int next_order;
if (control.ticks_counter || control.position.forbid_jump) break;
control.position.current_row = control.channel[p_track].current_parameter;
if (control.play_mode == PLAY_PATTERN) {
if (control.position.current_row >= song->get_pattern(control.position.current_pattern)->get_length()) {
control.position.current_row = 0;
}
break;
}
next_order = get_song_next_order_idx(song, (int)control.position.current_order);
if (next_order != -1) {
// Do we have a "next order?"
control.position.current_pattern = song->get_order(next_order);
if (control.position.current_row >= song->get_pattern(song->get_order(next_order))->get_length()) {
control.position.current_row = 0;
}
control.position.force_next_order = next_order;
} else {
// no, probably the user deleted the orderlist.
control.play_mode = PLAY_NOTHING;
reset();
}
} break;
case 'D': {
uint8_t inf;
//explicitslides=1;
inf = control.channel[p_track].current_parameter;
if (inf)
control.channel[p_track].volume_slide_info = inf;
else
inf = control.channel[p_track].volume_slide_info;
do_volume_slide(p_track, inf);
} break;
case 'E': {
uint8_t inf;
inf = control.channel[p_track].current_parameter;
do_pitch_slide_down(p_track, inf);
} break;
case 'F': {
uint8_t inf;
inf = control.channel[p_track].current_parameter;
do_pitch_slide_up(p_track, inf);
} break;
case 'G': {
if (control.channel[p_track].current_parameter) {
control.channel[p_track].portamento_speed = control.channel[p_track].current_parameter;
}
if (control.channel[p_track].period && (control.channel[p_track].old_note <= 120)) {
if ((!control.ticks_counter) && (control.channel[p_track].new_instrument)) {
control.channel[p_track].kick = KICK_NOTE;
control.channel[p_track].sample_start_index = 0;
} else {
control.channel[p_track].kick = (control.channel[p_track].kick == KICK_NOTE) ? KICK_ENVELOPE : KICK_NOTHING;
}
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period = true;
}
} break;
case 'H': {
uint8_t dat;
control.channel[p_track].doing_vibrato = true;
dat = control.channel[p_track].current_parameter;
if (!control.ticks_counter) {
if (dat & 0x0f) control.channel[p_track].vibrato_depth = dat & 0xf;
if (dat & 0xf0) control.channel[p_track].vibrato_speed = (dat & 0xf0) >> 2;
}
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track, false);
control.channel[p_track].has_own_period = true;
}
} break;
case 'I': {
do_tremor(p_track);
control.channel[p_track].has_own_volume = true;
} break;
case 'J': {
do_arpegio(p_track);
} break;
case 'K': {
uint8_t inf;
//explicitslides=1;
inf = control.channel[p_track].current_parameter;
control.channel[p_track].doing_vibrato = true;
if (inf)
control.channel[p_track].volume_slide_info = inf;
else
inf = control.channel[p_track].volume_slide_info;
do_volume_slide(p_track, inf);
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track, false);
control.channel[p_track].has_own_period = true;
}
} break;
case 'L': {
uint8_t inf;
//explicitslides=1;
inf = control.channel[p_track].current_parameter;
if (inf)
control.channel[p_track].volume_slide_info = inf;
else
inf = control.channel[p_track].volume_slide_info;
do_volume_slide(p_track, inf);
if (control.channel[p_track].period && (control.channel[p_track].old_note <= 120)) {
if ((!control.ticks_counter) && (control.channel[p_track].new_instrument)) {
control.channel[p_track].kick = KICK_NOTE;
control.channel[p_track].sample_start_index = 0;
} else {
control.channel[p_track].kick = (control.channel[p_track].kick == KICK_NOTE) ? KICK_ENVELOPE : KICK_NOTHING;
}
do_pitch_slide_to_note(p_track);
control.channel[p_track].has_own_period = true;
}
} break;
case 'M': {
control.channel[p_track].channel_volume = control.channel[p_track].current_parameter;
if (control.channel[p_track].channel_volume > 64)
control.channel[p_track].channel_volume = 64;
else if (control.channel[p_track].channel_volume < 0)
control.channel[p_track].channel_volume = 0;
} break;
case 'N': {
do_channel_volume_slide(p_track);
}
case 'O': {
if (!control.ticks_counter) {
if (control.channel[p_track].current_parameter) control.channel[p_track].lo_offset = (uint16_t)control.channel[p_track].current_parameter << 8;
control.channel[p_track].sample_start_index = control.channel[p_track].hi_offset | control.channel[p_track].lo_offset;
//if ((control.channel[p_track].sample_ptr!=NULL)&&(control.channel[p_track].sample_start_index>control.channel[p_track].sample_ptr->data.size)) {
//TODO, O effect
//a->start=a->s->flags&(SF_LOOP|SF_BIDI)?a->s->loopstart:a->s->length;
//}
}
} break;
case 'P': {
do_pan_slide(p_track);
} break;
case 'Q': {
do_retrig(p_track);
} break;
case 'R': {
uint8_t dat;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].tremolo_info = control.channel[p_track].current_parameter;
}
dat = control.channel[p_track].tremolo_info;
if (!control.ticks_counter && dat) {
if (dat & 0x0f) control.channel[p_track].tremolo_depth = dat & 0xf;
if (dat & 0xf0) control.channel[p_track].tremolo_speed = (dat & 0xf0) >> 2;
}
do_tremolo(p_track);
control.channel[p_track].has_own_volume = true;
} break;
case 'S': {
do_effect_S(p_track);
} break;
case 'T': {
uint8_t dat;
int16_t temp = control.tempo;
if (control.pattern_delay_2) return;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].tempo_slide_info = control.channel[p_track].current_parameter;
}
dat = control.channel[p_track].tempo_slide_info;
if (dat >= 0x20) {
if (control.ticks_counter) break;
control.tempo = dat;
} else {
if (!control.ticks_counter) break;
if (dat & 0x10) {
temp += (dat & 0x0f);
} else {
temp -= dat;
}
control.tempo = (temp > 255) ? 255 : (temp < 0x20 ? 0x20 : temp);
}
} break;
case 'U': {
uint8_t dat;
dat = control.channel[p_track].current_parameter;
control.channel[p_track].doing_vibrato = true;
if (!control.ticks_counter) {
if (dat & 0x0f) control.channel[p_track].vibrato_depth = dat & 0xf;
if (dat & 0xf0) control.channel[p_track].vibrato_speed = (dat & 0xf0) >> 2;
}
if (control.external_vibrato) break;
if (control.channel[p_track].period) {
do_vibrato(p_track, true);
control.channel[p_track].has_own_period = true;
}
} break;
case 'V': {
control.global_volume = control.channel[p_track].current_parameter;
if (control.global_volume > 128) control.global_volume = 128;
} break;
case 'W': {
do_global_volume_slide(p_track);
} break;
case 'X': {
//sets both channel and current
control.channel[p_track].channel_panning = control.channel[p_track].current_parameter;
control.channel[p_track].panning = control.channel[p_track].current_parameter;
} break;
case 'Y': {
uint8_t dat;
if (control.channel[p_track].current_parameter) {
control.channel[p_track].panbrello_info = control.channel[p_track].current_parameter;
}
dat = control.channel[p_track].panbrello_info;
if (!control.ticks_counter) {
if (dat & 0x0f) control.channel[p_track].panbrello_depth = (dat & 0xf);
if (dat & 0xf0) control.channel[p_track].panbrello_speed = (dat & 0xf0) >> 4;
}
//if (pf->panflag)
if (control.channel[p_track].panning != PAN_SURROUND) do_panbrello(p_track);
} break;
case 'Z': {
//I DO! cuttoff!
uint16_t dat = control.channel[p_track].current_parameter;
if (dat < 0x80) {
control.channel[p_track].filter.it_cutoff = dat * 2;
if (control.channel[p_track].filter.it_cutoff > 0x80)
control.channel[p_track].filter.it_cutoff++;
} else if (dat < 0x90) {
control.channel[p_track].filter.it_reso = (dat - 0x80) * 0x10;
} else {
control.channel[p_track].reverb_send = (dat - 0x90) * 255 / 0x6F;
}
} break;
}
}
void CPPlayer::pre_process_effects() {
// MP_VOICE *aout;
int i;
for (i = 0; i < CPPattern::WIDTH; i++) {
//a=&pf->control[mp_channel];
// if ((aout=a->slave)) {
// a->fadevol=aout->fadevol;
// a->period=aout->period;
// if (a->kick==KICK_KEYOFF) a->keyoff=aout->keyoff;
//}
//if (!a->row) continue;
//UniSetRow(a->row);
control.channel[i].has_own_period = false;
control.channel[i].has_own_volume = false;
control.channel[i].doing_vibrato = false;
//explicitslides=0;
//pt_playeffects();
if (control.ticks_counter < control.speed) {
run_effects(i);
run_volume_column_effects(i);
}
/* continue volume slide if necessary for XM and IT */
//if (pf->flags&UF_BGSLIDES) {
// if (!explicitslides && a->sliding)
// DoS3MVolSlide(0);
// else if (a->tmpvolume) a->sliding=explicitslides;
//}
if (!control.channel[i].has_own_period) control.channel[i].period = control.channel[i].aux_period;
if (!control.channel[i].has_own_volume) control.channel[i].volume = control.channel[i].aux_volume;
if ((control.channel[i].sample_ptr != NULL) && !(song->has_instruments() && (control.channel[i].instrument_ptr == NULL))) {
if (song->has_instruments()) {
control.channel[i].output_volume =
(control.channel[i].volume * control.channel[i].sample_ptr->get_global_volume() * control.channel[i].instrument_ptr->get_volume_global_amount()) / 2048;
control.channel[i].output_volume = control.channel[i].output_volume * control.channel[i].random_volume_variation / 100;
} else {
control.channel[i].output_volume =
(control.channel[i].volume * control.channel[i].sample_ptr->get_global_volume()) >> 4;
}
if (control.channel[i].output_volume > 256) {
control.channel[i].output_volume = 256;
} else if (control.channel[i].output_volume < 0) {
control.channel[i].output_volume = 0;
}
}
}
}
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